Yes. Definitely smaller. Not a baby though ha ha. But it should be smaller than the one in the tank. My GSM took 4 or 5 days. One day i got home from work and instead of the female attacking the glass she was swimming next to the container nearest the new clown. I let him go and they swam down to the nem together. So just look for non aggressive behavior and then let him go. Be ready with a net. It could be a ruse ha ha.